Modular book box



FIG. 1 is a perspective view of a modular book box showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 2 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof; the right side elevational view being a mirror image thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof; showing the box in an open position. 

The ornamental design for a modular book box, as shown and described. 